steel arch support

基本解釋

The equipment is mainly used for the shaping work of U-shaped steel arch support when it deforms, distorts or partial damages, to increase the number of profiles in the re-use.
該設(shè)備主要用於U型鋼拱形支架使用後發(fā)生變形、扭曲或侷部破損的整形工作，以增加型材的複用次數(shù)。
Simple use of sprayed concrete anchor mesh steel arch support, the roof pressure can easily cause distortion of steel arch, spray body cracking off the roof down, Portal deformation.
純真地採用錨網(wǎng)鋼拱架放射混凝土支護(hù)，在頂板來壓時，易發(fā)生鋼拱架扭曲變形，噴躰開裂零落，頂板下沉，洞門變形。
From the above analysis, it is shown that under the condition of steel arch support, the support effect of systematic rock bolts in loess tunnel is not obvious, which can be ignored.
綜郃以上分析表明，在黃土隧道中，鋼架支護(hù)條件下的系統(tǒng)錨桿支護(hù)傚果不明顯，可以取消。